SKU: 40902314932

Hillman 5/16 in. Diameter x 2-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-Pack

Sale price$53.99 Regular price$59.99
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Description

Hillman 5/16 in. Diameter x 2-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-PackHillman Grade 8 Hex Head Cap Screws, 5 16" x 2 1 2", 100 Pack Heavy duty Grade 8 hex head cap screws engineered from heat treated steel for high strength fastening. Coarse thread design with washer face under the head ensures secure seating and reliable performance in demanding applications. Key Features: Grade 8 Strength: Heat treated steel delivers superior tensile strength for heavy duty projects Coarse Thread: Provides fast, secure engagement in

Hillman Grade 8 Hex Head Cap Screws, 5/16" x 2-1/2", 100-Pack

Heavy-duty Grade 8 hex head cap screws engineered from heat-treated steel for high-strength fastening. Coarse-thread design with washer face under the head ensures secure seating and reliable performance in demanding applications.


Key Features:

  • Grade 8 Strength: Heat-treated steel delivers superior tensile strength for heavy-duty projects
  • Coarse Thread: Provides fast, secure engagement in tapped holes or with hex nuts
  • Washer Face Head: Built-in washer face under the hex head improves sealing and load distribution
  • Partially Threaded Shank: Ideal for alignment and shear strength in bolted joints
  • 100-Pack Convenience: Boxed quantity for jobsite efficiency and bulk stocking

Specifications Table:

Specification Details
Brand Name Hillman
Material Steel
Finish Heat-treated yellow dichromate
Grade 8 (USS Grade 8)
Head Type Hex head with washer face
Diameter 5/16 inch
Length 2-1/2 inch
Thread Type Coarse (USS)
Threading Partially threaded
Number in Package 100
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are Grade 8 cap screws that are partially threaded along the shank.


Q: What tools are needed for installation?
A: Tighten with a wrench or a drill/driver equipped with the correct hex socket.


Q: Can these be used outdoors?
A: They are heat-treated steel with a yellow dichromate finish for wear resistance; for corrosive outdoor environments, consider additional coatings or appropriate washers.


Q: What thread type do these have?
A: Coarse thread (USS).


Q: Do they include nuts or washers?
A: No. This pack includes only the hex head cap screws.


Industrial Strength with Sleek Utility

These Grade 8 hex cap screws bring a refined, utilitarian edge to any build, marrying strength with clean geometry. The washer-faced hex head offers a crisp silhouette while ensuring a flawless seat. Style them in exposed hardware applications for a subtle punch of industrial chic, or keep them concealed for uncompromising performance. A staple of luxurious, precision-crafted spaces.


Upgrade your fasteners to Grade 8 performance—add this 100-pack to your project and secure a stronger, longer-lasting build.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40902314932

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4.2 ★★★★★
Based on 13 reviews
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Product Reviews
J
Verified Purchase
Janie
Draper, US
★★★★★ 5
pillows
Size: Standard (2 Pillows + 2 Protectors), Style: Soft, Configuration: Pillows + Protectors
soft dont hold shape
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
S
Verified Purchase
Stephany figuera
Natrona Heights, US
★★★★★ 5
Excellent purchase
Size: Standard (2 Pillows + 2 Protectors), Style: Soft, Configuration: Pillows + Protectors
I purchased this Amazon Basics pillow set with protective pillow covers, and it was honestly a great buy. The pillows have a soft density, which is perfect if you like comfort without feeling too firm or stiff. From the first night, they adapted well to my head and neck, helping me sleep more comfortably.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026
W
Verified Purchase
W C
Omaha, US
★★★★★ 1
Don't try to save $$ when buying pillows. Better to sleep happy!
Size: Standard (2 Pillows + 2 Protectors), Style: Soft, Configuration: Pillows + Protectors, Size: Standard (2 Pillows + 2 Protectors), Style: Soft, Configuration: Pillows + Protectors
Instead of purchasing what I was looking for I went with the Amazon variation and I'll think twice before doing that again. The reviews for this pillow said that it was "soft" (not FIRM) and good for side sleepers. Now imagine a pillow that you have to inflate, and you fill it to maximum capacity, then try to sleep on that balloon! It barely gives when you lay on it and is FIRM! Go with your gut and don't try and save a few bucks when you buy something as important as a pillow. Unfortunately they were vacuum packed and I don't think I can return them. They inflated quite a bit and it would be a pretty big hassle. Someone is getting a gift of 2 very firm pillows!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2025
D
Verified Purchase
DR
Houston, US
★★★★★ 5
The best pillow I've ever had!
Size: King (U.S. Standard), Number of Items: 2
I have tried a LOT of pillows over the years. I'm allergic to feathers so I need something non-allergenic. I am a back and side sleeper, and all of the pillows I've tried have gone flat after just a few weeks. Well I've had these for a couple of months now, and they show no sign of flatness whatsoever. A few punches or a fluff cycle in my dryer each week plumps them right up. They are just the right kind of firmness -- enough give so that I'm not kinking my neck, but not too much give so that my head ends up on the mattress by morning. I just cannot say enough good things about these pillows. I'm so excited that I finally found one that is perfect for me. As others have said, they arrive vacuum packed. They look a bit weird, and it will make you wonder how they will ever fluff up from how flat they are when they arrive. But look at it as an opportunity to take out your frustrations lol. Whack them on a wall, punch the bejeebers out of them, it will make you feel good and it will inflate them right up. Or throw them in the dryer like I did and in 15 minutes you will have a perfectly fluffy pillow. All in all, I highly recommend these. The price point is so reasonable, and they seem to be well made. Five stars all around.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2025
G
Verified Purchase
Gary
Houston, US
★★★★★ 5
Updated: actually very good pillows for the price
Size: King (U.S. Standard), Number of Items: 2
Wow! It is amazing at how compact these arrive in their package... it actually was a bit of work to get them out of the packaging it was so tight. Once out, they immediately began to "size up" and within about 15 minutes had reached maximum size. They are comfortable pillows, but lack the firmness that I wanted. On a scale of 1-5, I'd rate them 3 at the most, possible a 2 if 5 is maximum firmness. Updated: After about a month or so of having these, I have to admit my initial impressions were flat out wrong... these are fantastic... comfortable and more firm than I initially thought... probably 4-4.5 out of 5 on the firmness scale now. Maybe they just take a while to decompress? Anyway, would now definitely recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2025

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